Answer:
Hello There!  (^.^)
Explanation:
Correct me if i'm wrong, but your answer is
<h2>A: Jet Stream.</h2><h2 /><h2>A jet stream is defined as: fast flowing, narrow, meandering air currents of some planets, including Earth. On Earth, the main jet streams are usually found near the altitude of the tropopause and are normally westerly winds.</h2><h2 /><h2 />
If this helps, please give me a thanks!!  o(≧o≦)o
- abakugosimp
 
        
             
        
        
        
If Nora bikes 30 miles per 1 hour, she'll ride 5 times as much in 5 hours.
30*5=150 miles
Jiro at 45 miles per 1 hour
45*5=225 miles in 5 hours
To find out how many more miles Jiro rides than Nora, subtract:
225-150=75 
:)
        
                    
             
        
        
        
I think the answer is <u>D</u>, because no other answer makes as much sense.